The patch titled
knfsd: add svc_get
has been added to the -mm tree. Its filename is
knfsd-add-svc_get.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: knfsd: add svc_get
From: Greg Banks <gnb@xxxxxxxxxxxxxxxxx>
add svc_get() for those occasions when we need to temporarily bump up
svc_serv->sv_nrthreads as a pseudo refcount.
Signed-off-by: Greg Banks <gnb@xxxxxxxxxxxxxxxxx>
Signed-off-by: Neil Brown <neilb@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/nfsd/nfssvc.c | 2 +-
include/linux/sunrpc/svc.h | 11 +++++++++++
2 files changed, 12 insertions(+), 1 deletion(-)
diff -puN fs/nfsd/nfssvc.c~knfsd-add-svc_get fs/nfsd/nfssvc.c
--- a/fs/nfsd/nfssvc.c~knfsd-add-svc_get
+++ a/fs/nfsd/nfssvc.c
@@ -200,7 +200,7 @@ int nfsd_create_serv(void)
int err = 0;
lock_kernel();
if (nfsd_serv) {
- nfsd_serv->sv_nrthreads++;
+ svc_get(nfsd_serv);
unlock_kernel();
return 0;
}
diff -puN include/linux/sunrpc/svc.h~knfsd-add-svc_get include/linux/sunrpc/svc.h
--- a/include/linux/sunrpc/svc.h~knfsd-add-svc_get
+++ a/include/linux/sunrpc/svc.h
@@ -71,6 +71,17 @@ struct svc_serv {
};
/*
+ * We use sv_nrthreads as a reference count. svc_destroy() drops
+ * this refcount, so we need to bump it up around operations that
+ * change the number of threads. Horrible, but there it is.
+ * Should be called with the BKL held.
+ */
+static inline void svc_get(struct svc_serv *serv)
+{
+ serv->sv_nrthreads++;
+}
+
+/*
* Maximum payload size supported by a kernel RPC server.
* This is use to determine the max number of pages nfsd is
* willing to return in a single READ operation.
_
Patches currently in -mm which might be from gnb@xxxxxxxxxxxxxxxxx are
knfsd-knfsd-add-some-missing-newlines-in-printks.patch
knfsd-knfsd-remove-an-unused-variable-from-e_show.patch
knfsd-knfsd-remove-an-unused-variable-from-auth_unix_lookup.patch
knfsd-use-seq_start_token-instead-of-hardcoded-magic-void1.patch
knfsd-move-tempsock-aging-to-a-timer.patch
knfsd-move-tempsock-aging-to-a-timer-tidy.patch
knfsd-convert-sk_inuse-to-atomic_t.patch
knfsd-use-new-lock-for-svc_sock-deferred-list.patch
knfsd-convert-sk_reserved-to-atomic_t.patch
knfsd-test-and-set-sk_busy-atomically.patch
knfsd-split-svc_serv-into-pools.patch
knfsd-add-svc_get.patch
knfsd-add-svc_set_num_threads.patch
knfsd-use-svc_set_num_threads-to-manage-threads-in-knfsd.patch
knfsd-make-rpc-threads-pools-numa-aware.patch
knfsd-allow-admin-to-set-nthreads-per-node.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
